I have the same problem, except a majority of the time I can't even remember yesterday. I think it has a lot to do with interest. We do so many things, and as hobbiests the newer things we do the less interested we are in things we previously made. The newer projects are so much better, with better techniques, etc. I've made a lot of stuff in the past and probably wouldn't recognize some of them if I saw them. I also think it may have to do with who we make them for. If you make them for you or someone in your house it's visible to you all the time. If you make it for Joe down the street and you never see it again, it's easy to forget. I don't think it has anything to do with age, although maybe when you are much older it might. You're still a young buck. Ask us again in 12 years when you're 90.